"Dear customer support, I am leaving you, but the representative I told that too didn't beg me to stay.  Can you bump this up the ladder until you find someone that will beg me to stay"????????????

Trust me, if I made the decision to leave, I would be more irritated to have someone on the other side of the phone pestering me to stay.  Once I'm gone, I'm gone.  Please don't waste anymore of my time trying to change my mind.